OSG - 1/4-20 UNC, 3 Flute, 45° Helix, Bottoming Chamfer, Oxide Finish, Vanadium High Speed Steel Spiral Flute STI Tap - Right Hand Flute, 2-1/2" OAL, 0.318" Shank Diam, 1" Thread Length, Series 302
Item #: 68572866
Brand: OSG
Model #: 0146001
Exact Tooling IR#: 04
Features and Benefits
Bottoming chamfers are used for threading blind holes. They have 1 to 2 threads.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/4-20 |
| Thread Limit | H2 |
| Number of Flutes | 3 |
| Chamfer | Bottoming |
| Finish/Coating | Oxide |
| Overall Length (Inch) | 2-1/2 |
| Helix Angle | 45 |
| Thread Standard | UNC |
| Material | Vanadium High Speed Steel |
| Flute Direction | Right Hand |
| Thread Length (Inch) | 1 |
| Series/List | 302 |
| Shank Diameter (Decimal Inch) | 0.3180 |
| Material Application | Carbon Steel; Hardened Steel; Stainless Steel |